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WO1991014914A1 - Procede de mesure de la vitesse d'alimentation de dechets a bruler - Google Patents

Procede de mesure de la vitesse d'alimentation de dechets a bruler Download PDF

Info

Publication number
WO1991014914A1
WO1991014914A1 PCT/JP1991/000398 JP9100398W WO9114914A1 WO 1991014914 A1 WO1991014914 A1 WO 1991014914A1 JP 9100398 W JP9100398 W JP 9100398W WO 9114914 A1 WO9114914 A1 WO 9114914A1
Authority
WO
WIPO (PCT)
Prior art keywords
waste
unit time
amount
incinerator
feed rate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP1991/000398
Other languages
English (en)
Japanese (ja)
Inventor
Miki Yamagishi
Takashi Yokoyama
Yasuo Suzuki
Haruhito Tsuboi
Takashi Noto
Masaaki Kawakami
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to EP91906422A priority Critical patent/EP0482201B1/fr
Priority to DE69124186T priority patent/DE69124186T2/de
Priority to FI915582A priority patent/FI915582A7/fi
Priority to KR1019910701697A priority patent/KR950011335B1/ko
Publication of WO1991014914A1 publication Critical patent/WO1991014914A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/50—Control or safety arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/44—Details; Accessories
    • F23G5/442—Waste feed arrangements
    • F23G5/444—Waste feed arrangements for solid waste
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
    • G01F1/661—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters using light
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/74—Devices for measuring flow of a fluid or flow of a fluent solid material in suspension in another fluid
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M11/00—Counting of objects distributed at random, e.g. on a surface
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M11/00—Counting of objects distributed at random, e.g. on a surface
    • G06M11/02—Counting of objects distributed at random, e.g. on a surface using an electron beam scanning a surface line by line, e.g. of blood cells on a substrate
    • G06M11/04—Counting of objects distributed at random, e.g. on a surface using an electron beam scanning a surface line by line, e.g. of blood cells on a substrate with provision for distinguishing between different sizes of objects
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2207/00—Control
    • F23G2207/10—Arrangement of sensing devices
    • F23G2207/112—Arrangement of sensing devices for waste supply flowrate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2207/00—Control
    • F23G2207/20—Waste supply

Definitions

  • the present invention relates to a method for measuring the amount of waste put into a fluidized bed incinerator.
  • the fluidized bed incinerator 5 heats the fluidized bed of fluidized bed 11 composed of fluidized sand circulated to the lower part of the furnace in advance to about 600 ° C, In a state where the sand is fluidized by the air 16, the burnable material supplied from the charging seat 2 is burned in a short time. The unburned gas that has not been completely burned in the fluidized bed 11 is burned by the secondary air 15 supplied to the freeboard section 13, and the flue gas 14 is discharged from the furnace top. ing.
  • incombustibles in the burnables are discharged out of the furnace from the bottom of the furnace together with the fluidized sand.
  • the fluidized sand is separated and recirculated into the furnace.
  • An object of the present invention is to provide a method for measuring the supplied amount of waste for incineration, which can solve the above problems.
  • the method for measuring the supply amount of waste for incineration is a method for supplying incineration waste from a dust machine to an incinerator in a fluidized bed waste incinerator.
  • the photovoltaic elements installed in the shot chamber detect the state of passage of the waste, and the detected signal indicates the amount of waste supplied (w) as mtk.
  • the measurement is performed by the following arithmetic expression.
  • Photoelectric elements installed in a shot for incineration waste to be put into an incinerator can detect waste in a non-contact manner and are resistant to corrosion and breakage, enabling long-term stable measurement .
  • the amount of waste supplied can be measured instantaneously and without any time delay, stable combustion control can be performed.
  • FIG. 1 is an explanatory diagram showing an example of an apparatus configuration for implementing the method of the present invention
  • Fig. 2 is an explanatory diagram of the installation state of the photoelectric element
  • FIG. 3 is an explanatory diagram of a detection signal of the photoelectric element
  • Fig. 4 shows the distribution of waste supply at a certain t / T (detection time per unit time).
  • Fig. 5 is an explanatory diagram showing the relationship between t ZT (detection time Z unit time) and the amount of waste supplied,
  • FIG. 6 is an illustration of a fluidized bed incinerator.
  • the photovoltaic element 1 for detecting the passing state of the waste 3 is provided in a shot 2 for injecting the waste 3 from the dust collector 4 into the incinerator 5. Then, the detection signal 6 of the photoelectric element 1 is sent to the arithmetic processing device 7, and the supply amount is measured.
  • a pair of transmission type photoelectric switches including a light emitting section 1a and a light receiving section 1b is used as the photoelectric element 1, as shown in FIG. 2, a pair of transmission type photoelectric switches including a light emitting section 1a and a light receiving section 1b is used. Since the photoelectric element 1 is not in contact with the waste 3, corrosion and damage due to the waste are unlikely to occur.
  • purge air was flowed between the light-emitting part 1a, light-receiving part 1b, and the shot 2. ing.
  • the amount of the purge air, the kind of incineration for waste, by setting values other factors in furnace pressure, are adjusted in the range of 5 ⁇ 2 0.0 N m 3 / h ⁇ sets 0
  • the light receiving section 1b When the incineration waste 3 blocks the optical path 9 of the photoelectric element 1, the light receiving section 1b does not sense the light, and a detection signal is output during that time. number 3
  • the figure shows the output of the detection signal.
  • a value of “1” or “0” is output as a detection signal according to the presence or absence of waste 3.
  • the detection signal shown in FIG. 3 is signal-processed so as to show a value of ⁇ ⁇ '' when the waste 3 crosses the optical path 9 of the photoelectric element. It is possible. Then, while the waste 3 blocks the optical path 9 from the photoelectric element, the detection signal holds a value of “0”, and from the time of the “0” value, the amount of the incineration waste 3 can be calculated.
  • stable combustion control can be performed by incorporating the measured supply amount into the combustion control system every moment.
  • a transmission type photoelectric switch is used as the photoelectric element.
  • a reflection type photoelectric element, a laser transmitting / receiving element, or the like may be used instead.
  • the method for measuring the amount of waste supplied for incineration according to the present invention is as described above, and the waste can be detected in a non-contact manner by a photoelectric element provided in a shoot for putting the waste for incineration into an incinerator. It is hard to corrode or break, so stable measurement can be performed for a long time. In addition, since the amount of waste supplied can be measured instantaneously and without any time delay, stable combustion control can be performed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Electromagnetism (AREA)
  • Environmental & Geological Engineering (AREA)
  • Incineration Of Waste (AREA)

Abstract

Le procédé décrit sert à mesurer la vitesse d'alimentation de déchets à brûler dans un incinérateur à lit fluidisé. La présente invention se caractérise en ce que le processus de passage des déchets (3) est détecté par des éléments photoélectriques (1) placés dans une goulotte (2), pour permettre l'acheminement des déchets à brûler depuis un alimentateur de poussière (4) vers un incinérateur (5), et la vitesse d'alimentation (w) des déchets est déterminée par l'intermédiaire d'un signal de détection grâce à l'utilisation de l'équation (I), où w représente une vitesse d'alimentation par unité de temps; m représente le nombre de groupes d'éléments photoélectriques; t représente un temps d'obtention des signaux de détection par unité de temps; T représente une unité de temps; et A représente une constante.
PCT/JP1991/000398 1990-03-27 1991-03-27 Procede de mesure de la vitesse d'alimentation de dechets a bruler Ceased WO1991014914A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP91906422A EP0482201B1 (fr) 1990-03-27 1991-03-27 Méthode de contrÔler un procédé de combustion des déchets
DE69124186T DE69124186T2 (de) 1990-03-27 1991-03-27 Verfahren zur Regelung eines Abfallverbrennungsprozesses
FI915582A FI915582A7 (fi) 1990-03-27 1991-03-27 Polttokattilan syötön nopeuden mittausmenetelmä
KR1019910701697A KR950011335B1 (ko) 1990-03-27 1991-03-27 소각용 폐기물의 공급량 계측방법

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2077381A JPH0739854B2 (ja) 1990-03-27 1990-03-27 焼却用廃棄物の供給量計測方法
JP2/77381 1990-03-27

Publications (1)

Publication Number Publication Date
WO1991014914A1 true WO1991014914A1 (fr) 1991-10-03

Family

ID=13632316

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1991/000398 Ceased WO1991014914A1 (fr) 1990-03-27 1991-03-27 Procede de mesure de la vitesse d'alimentation de dechets a bruler

Country Status (7)

Country Link
US (1) US5169268A (fr)
EP (1) EP0482201B1 (fr)
JP (1) JPH0739854B2 (fr)
KR (1) KR950011335B1 (fr)
DE (1) DE69124186T2 (fr)
FI (1) FI915582A7 (fr)
WO (1) WO1991014914A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19917572A1 (de) * 1999-04-19 2000-10-26 Abb Alstom Power Ch Ag Verfahren zur automatischen Einstellung der Feuerung einer Müllverbrennungsanlage
FR2863371B1 (fr) * 2003-12-03 2006-02-03 Jean Christophe Marius M Ealet Methode et dispositif d'evaluation predictive de la charge thermique pour les usines d'incineration de dechets solides

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57184920A (en) * 1981-05-09 1982-11-13 Kubota Ltd Powder passage detector
JPS6057523B2 (ja) * 1978-10-20 1985-12-16 株式会社タクマ ごみ焼却炉におけるごみ供給量検出装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3932137A (en) * 1973-11-08 1976-01-13 Aero-Dyne Manufacturing, Inc. Burner with automatic high-low operation
JPS53148165A (en) * 1977-05-30 1978-12-23 Ebara Corp Method of incinerating in fluidized bed incinerator and incinerator therefor
US4205230A (en) * 1977-08-29 1980-05-27 Pretron Electronics Pty. Ltd. Solid materials flow rate measurement
JPS57419A (en) * 1980-06-03 1982-01-05 Matsumoto Noki Tekko Kk Bottom plate opening and closing mechanism in rubber tyre incineration system
JPS6057523A (ja) * 1983-09-07 1985-04-03 Seiko Epson Corp 垂直磁気記録媒体
JP2623080B2 (ja) * 1984-04-02 1997-06-25 株式会社日立製作所 先行制御型自動制御装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6057523B2 (ja) * 1978-10-20 1985-12-16 株式会社タクマ ごみ焼却炉におけるごみ供給量検出装置
JPS57184920A (en) * 1981-05-09 1982-11-13 Kubota Ltd Powder passage detector

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP0482201A4 *

Also Published As

Publication number Publication date
EP0482201B1 (fr) 1997-01-15
JPH03279703A (ja) 1991-12-10
EP0482201A1 (fr) 1992-04-29
KR950011335B1 (ko) 1995-09-30
US5169268A (en) 1992-12-08
FI915582A0 (fi) 1991-11-27
FI915582A7 (fi) 1991-11-27
JPH0739854B2 (ja) 1995-05-01
DE69124186T2 (de) 1997-08-21
EP0482201A4 (en) 1993-03-10
DE69124186D1 (de) 1997-02-27
KR920701755A (ko) 1992-08-12

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